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BOSTON MARATHON 2023

Marcus Sandberg

Bib: 2875•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 16%
Masters (Masters Men)
#0 / 9891
Top 6%
Division (M45-49)
#0 / 2252
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:52
Rank: #1800
Start → 5K
19:52 | 6:24/mi
10K· 6.21 mi
39:29
Rank: #1797 (+3)
5K → 10K
19:37 | 6:19/mi
15K· 9.32 mi
59:19
Rank: #1847 (-50)
10K → 15K
19:50 | 6:23/mi
20K· 12.43 mi
1:19:19
Rank: #1856 (-9)
15K → 20K
20:00 | 6:26/mi
Half· 13.11 mi
1:23:41
Rank: #1867 (-11)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:39:28
Rank: #1901 (-34)
Half → 25K
15:47 | 6:31/mi
30K· 18.64 mi
2:00:19
Rank: #1988 (-87)
25K → 30K
20:51 | 6:43/mi
20M
2:09:34
Rank: #2034 (-46)
30K → 20M
9:15 | 6:48/mi
21M
2:16:48
Rank: #2076 (-42)
20M → 21M
7:14 | 7:14/mi
35K· 21.75 mi
2:21:36
Rank: #2062 (+14)
21M → 35K
4:48 | 6:25/mi
23M
2:30:18
Rank: #2107 (-45)
35K → 23M
8:42 | 6:57/mi
24M
2:37:16
Rank: #2176 (-69)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
2:43:40
Rank: #2289 (-113)
24M → 40K
6:24 | 7:29/mi
25.2M
2:46:36
Rank: #2341 (-52)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
2:54:38
Rank: #2613 (-272)
25.2M → Finish
8:02 | 7:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:41
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:30:57
Pace6:56 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4319:526:2419:52
6:24
-
10K
6.21 mi10:40:2039:296:2119:37
6:19
-0:05
15K
9.32 mi11:00:1059:196:2219:50
6:23
+0:04
20K
12.43 mi11:20:101:19:196:2320:00
6:26
+0:03
Half
13.11 mi11:24:321:23:416:234:22
6:24
-0:02
25K
15.53 mi11:40:191:39:286:2415:47
6:31
+0:07
30K
18.64 mi12:01:102:00:196:2720:51
6:43
+0:12
20M
20.00 mi12:10:252:09:346:299:15
6:48
+0:05
21M
21.00 mi12:17:392:16:486:317:14
7:14
+0:26
35K
21.75 mi12:22:272:21:366:314:48
6:25
-0:49
23M
23.00 mi12:31:092:30:186:328:42
6:57
+0:32
24M
24.00 mi12:38:072:37:166:336:58
6:58
+0:01
40K
24.85 mi12:44:312:43:406:356:24
7:29
+0:31
25.2M
25.20 mi12:47:272:46:366:372:56
8:30
+1:01
Finish
26.22 mi12:55:292:54:386:408:02
7:53
-0:37

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:19 /mi

Average Pace

6:40 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:41

36% of race

Time at Steady Pace

1:26:21

49% of race

Time at Slower Pace

24:36

14% of race

Average Pace: 6:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:20:4319:526:2419:52
6:24
#1800
10K
6.21 mi10:40:2039:296:2119:37
6:19
#1797
15K
9.32 mi11:00:1059:196:2219:50
6:23
#1847
20K
12.43 mi11:20:101:19:196:2320:00
6:26
#1856
Half
13.11 mi11:24:321:23:416:234:22
6:24
#1867
25K
15.53 mi11:40:191:39:286:2415:47
6:31
#1901
30K
18.64 mi12:01:102:00:196:2720:51
6:43
#1988
20M
20.00 mi12:10:252:09:346:299:15
6:48
#2034
21M
21.00 mi12:17:392:16:486:317:14
7:14
#2076
35K
21.75 mi12:22:272:21:366:314:48
6:25
#2062
23M
23.00 mi12:31:092:30:186:328:42
6:57
#2107
24M
24.00 mi12:38:072:37:166:336:58
6:58
#2176
40K
24.85 mi12:44:312:43:406:356:24
7:29
#2289
25.2M
25.20 mi12:47:272:46:366:372:56
8:30
#2341
Finish
26.22 mi12:55:292:54:386:408:02
7:53
#2613
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1800171617162012(Top 8%)1927(Top 13%)1927(Top 86%)
10K6.21 mi3.10 mi1797+31719-31719-31827(Top 7%)1748(Top 12%)1748(Top 78%)
15K9.32 mi3.11 mi1847-501767-481767-482012(Top 8%)1927(Top 13%)1927(Top 86%)
20K12.43 mi3.11 mi1856-91776-91776-91986(Top 7%)1907(Top 13%)1907(Top 85%)
Half13.11 mi0.68 mi1867-111788-121788-122246(Top 8%)2156(Top 14%)2156(Top 96%)
25K15.53 mi2.42 mi1901-341819-311819-312218(Top 8%)2128(Top 14%)2128(Top 94%)
30K18.64 mi3.11 mi1988-871905-861905-862461(Top 9%)2343(Top 15%)2343(Top 104%)
20M20.00 mi1.36 mi2034-461949-441949-442842(Top 11%)2677(Top 18%)2677(Top 119%)
21M21.00 mi1.00 mi2076-421989-401989-403262(Top 12%)3042(Top 20%)3042(Top 135%)
35K21.75 mi0.75 mi2062+141978+111978+112051(Top 8%)1949(Top 13%)1949(Top 87%)
23M23.00 mi1.25 mi2107-452020-422020-423487(Top 13%)3228(Top 21%)3228(Top 143%)
24M24.00 mi1.00 mi2176-692088-682088-684463(Top 17%)4024(Top 27%)4024(Top 179%)
40K24.85 mi0.85 mi2289-1132190-1022190-1026580(Top 25%)5368(Top 35%)5368(Top 238%)
25.2M25.20 mi0.35 mi2341-522241-512241-519413(Top 35%)6939(Top 46%)6939(Top 308%)
Finish26.22 mi1.02 mi2613-2722491-2502491-25011226(Top 42%)7883(Top 52%)7883(Top 350%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2012

Males

1927

M45-49

1927

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1827

Males

1748

M45-49

1748

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2012

Males

1927

M45-49

1927

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1986

Males

1907

M45-49

1907

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2246

Males

2156

M45-49

2156

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2218

Males

2128

M45-49

2128

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2461

Males

2343

M45-49

2343

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2842

Males

2677

M45-49

2677

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3262

Males

3042

M45-49

3042

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2051

Males

1949

M45-49

1949

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3487

Males

3228

M45-49

3228

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4463

Males

4024

M45-49

4024

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6580

Males

5368

M45-49

5368

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9413

Males

6939

M45-49

6939

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11226

Males

7883

M45-49

7883

Passing Analysis

Category:
Athletes Passed
364
Passed By
1177
Net Change
-813
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1800
5K → 10K9390+3#1800#1797
10K → 15K3585-50#1797#1847
15K → 20K5463-9#1847#1856
20K → Half617-11#1856#1867
Half → 25K2963-34#1867#1901
25K → 30K31118-87#1901#1988
30K → 20M3076-46#1988#2034
20M → 21M1658-42#2034#2076
21M → 35K2410+14#2076#2062
35K → 23M2671-45#2062#2107
23M → 24M978-69#2107#2176
24M → 40K8121-113#2176#2289
40K → 25.2M254-52#2289#2341
25.2M → Finish1273-272#2341#2613
TOTALS3641177-813
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing